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Finding the Fourth Proportional to 15,720.52, 23,576.22 and 6,357.64

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Solution

The fourth proportional to 15,720.52, 23,576.22 and 6,357.64 is: 9,534.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,720.52 : 23,576.22 = 6,357.64 : x
  2. Step 2: Convert to fraction form
    15,720.52/23,576.22 = 6,357.64/x
  3. Step 3: Cross multiply
    15,720.52x = 23,576.22 × 6,357.64
  4. Step 4: Simplify right side
    15,720.52x = 149,889,119.32
  5. Step 5: Solve for x
    x = 149,889,119.32/15,720.52
  6. Step 6: Final answer
    x = 9,534.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.